The pneumatic knife holder
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Author : Sunny Xia
Update time : 2026-06-03 20:41:40
A pneumatic knife holder is a tool mounting device that uses compressed air to provide pressure, commonly used in the slitting of materials such as paper tubes, films, and non-woven fabrics.
By driving a cylinder with compressed air, the pneumatic knife holder provides stable and adjustable cutting pressure to the blades, ensuring the continuity and consistency of the slitting process.
In most pneumatic knife holder shearing equipment, the main functions of compressed air are:
During the shearing process, the blades typically do not have independent drive devices. As the cut material moves forward continuously, the material contacts the blade, generating friction that causes the blade to rotate freely. In other words, compressed air provides the cutting pressure, while the material movement drives the blade rotation. Therefore, the slitting process is not a simple "crushing" but a continuous rolling shearing process.
High-performance pneumatic knife holders can effectively control cut quality, extend tool life, and improve production efficiency. The cylinder generates a downward force through compressed air, maintaining a reasonable meshing amount and lateral clearance between the upper and lower blades. Stable air pressure not only ensures clean edges and reduces burrs, thus guaranteeing slitting quality, but also reduces tool wear. When the equipment starts up or the tool is changed, the pneumatic system can control the tool holder to rise or fall quickly, thereby improving production efficiency and ease of operation.
By driving a cylinder with compressed air, the pneumatic knife holder provides stable and adjustable cutting pressure to the blades, ensuring the continuity and consistency of the slitting process.
In most pneumatic knife holder shearing equipment, the main functions of compressed air are:
1. Providing cutting pressure
2. Achieving knife holder raising and lowering
During the shearing process, the blades typically do not have independent drive devices. As the cut material moves forward continuously, the material contacts the blade, generating friction that causes the blade to rotate freely. In other words, compressed air provides the cutting pressure, while the material movement drives the blade rotation. Therefore, the slitting process is not a simple "crushing" but a continuous rolling shearing process.
High-performance pneumatic knife holders can effectively control cut quality, extend tool life, and improve production efficiency. The cylinder generates a downward force through compressed air, maintaining a reasonable meshing amount and lateral clearance between the upper and lower blades. Stable air pressure not only ensures clean edges and reduces burrs, thus guaranteeing slitting quality, but also reduces tool wear. When the equipment starts up or the tool is changed, the pneumatic system can control the tool holder to rise or fall quickly, thereby improving production efficiency and ease of operation.
